Stars
The reason the planets orbit the sun.
Gravity
What is the first element created in the universe?
Hydrogen
All objects that have mass have this.
Gravity
The core of the Earth is mostly composed of which two metals?
Nickel and Iron
The unit for momentum.
kg*m/s
The sun is in this stage of it's life cycle.
Main Sequence
When a source of a wave is traveling toward an observer.
Blueshift
Objects at rest stay at rest and objects in motion stay in motion until a force changes that.
Newtons First Law
What is the term for when one tectonic plate is pushed under another?
Subduction
Suppose a car is going 30 miles per hour down the road and then the breaks are applied to come to rest. What are the two energies in the system?
Kinetic Energy and Work
The hottest part of a star.
The core
What is the approximate ratio of Hydrogen to Helium in the universe?
10 to 1
A push or a pull.
Force
Another term for continental plates.
Lithospheric Plates
The law that states that the spring force is directly proportional to displacement.
Hooke's Law
This process is the energy source for stars.
Nuclear fusion
Which scientist is the father of the modern Big Bang Theory?
Lemaitre
For every action there is an equal and opposite reaction.
Newtons 3rd Law
Which of the Earth's layers produces the protective magnetic field around the planet?
Outer Core
List 4 examples of renewable energy.
Hydroelectric, Solar, Geothermal, Wind, Biomass
When a star reaches the end of its life, what force prevents it from collapsing in on itself?
Electrostatic Force
Which scientist was the first to accurately predict the path that astronomical bodies take in the sky?
Copernicus
Thrust Force, Drag Force, Gravity, Lift Force
What causes the movement of the tectonic plates?
Convection Currents
The term for when a planet is at its furthest point from its star.
Apogee